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Initial Commit of Retrospective OTB Verification (#3372)

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## Issue Addressed

* #2983 

## Proposed Changes

Basically followed the [instructions laid out here](https://github.com/sigp/lighthouse/issues/2983#issuecomment-1062494947)


Co-authored-by: Paul Hauner <paul@paulhauner.com>
Co-authored-by: ethDreamer <37123614+ethDreamer@users.noreply.github.com>
This commit is contained in:
ethDreamer
2022-07-30 00:22:38 +00:00
parent 6c2d8b2262
commit 034260bd99
12 changed files with 1013 additions and 7 deletions
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17
beacon_node/beacon_chain/src/execution_payload.rs
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@@ -7,6 +7,7 @@
//! So, this module contains functions that one might expect to find in other crates, but they live
//! here for good reason.
use crate::otb_verification_service::OptimisticTransitionBlock;
use crate::{
BeaconChain, BeaconChainError, BeaconChainTypes, BlockError, BlockProductionError,
ExecutionPayloadError,
@@ -27,6 +28,12 @@ use types::*;
pub type PreparePayloadResult<Payload> = Result<Payload, BlockProductionError>;
pub type PreparePayloadHandle<Payload> = JoinHandle<Option<PreparePayloadResult<Payload>>>;
#[derive(PartialEq)]
pub enum AllowOptimisticImport {
Yes,
No,
}
/// Used to await the result of executing payload with a remote EE.
pub struct PayloadNotifier<T: BeaconChainTypes> {
pub chain: Arc<BeaconChain<T>>,
@@ -146,6 +153,7 @@ async fn notify_new_payload<'a, T: BeaconChainTypes>(
pub async fn validate_merge_block<'a, T: BeaconChainTypes>(
chain: &Arc<BeaconChain<T>>,
block: BeaconBlockRef<'a, T::EthSpec>,
allow_optimistic_import: AllowOptimisticImport,
) -> Result<(), BlockError<T::EthSpec>> {
let spec = &chain.spec;
let block_epoch = block.slot().epoch(T::EthSpec::slots_per_epoch());
@@ -188,13 +196,18 @@ pub async fn validate_merge_block<'a, T: BeaconChainTypes>(
}
.into()),
None => {
if is_optimistic_candidate_block(chain, block.slot(), block.parent_root()).await? {
if allow_optimistic_import == AllowOptimisticImport::Yes
&& is_optimistic_candidate_block(chain, block.slot(), block.parent_root()).await?
{
debug!(
chain.log,
"Optimistically accepting terminal block";
"Optimistically importing merge transition block";
"block_hash" => ?execution_payload.parent_hash(),
"msg" => "the terminal block/parent was unavailable"
);
// Store Optimistic Transition Block in Database for later Verification
OptimisticTransitionBlock::from_block(block)
.persist_in_store::<T, _>(&chain.store)?;
Ok(())
} else {
Err(ExecutionPayloadError::UnverifiedNonOptimisticCandidate.into())